Temperature sensitive valve

ABSTRACT

One or more techniques and/or systems are disclosed for interrupting fluid flow when experiencing fuel leaking conditions, such as an out of specification connection between the fuel source and a device utilizing the fluid. A distal end of a valve body has interfaces with at least a portion of a connection to a fluid supply; and a proximal end interfaces with at least a portion of a fuel intake. An internal passage runs between the proximal end and distal ends of. A displacement member in the internal passage comprises a distal portion that extends out of the valve to engage a valve to the fuel supply. A retention cap selectably engaged with the valve body can comprise a material that deforms under force at a predetermined temperature, resulting in a release of the displacement member under a biasing force form a biasing component between the cap and displacement member.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. Ser. No.15/785,944, entitled TEMPERATURE SENSITIVE VALVE, filed Oct. 17, 2017,which claims priority to U.S. Provisional Patent Application Ser. No.62/491,570, entitled TEMPERATURE SENSITIVE VALVE, filed Apr. 28, 2017;and claims priority to China Patent Application No. CN 201610905941.9,entitled A TEMPERATURE-SENSING FUSE THIMBLE VALVE, filed Oct. 18, 2016;all of which are incorporated herein by reference.

BACKGROUND

Devices and systems having a combustion operation will utilize some sortof combustible fuel, often in the form of liquid, pressurized gas, orpressurized liquid (e.g., or more than one). In some devices andsystems, the fuel can be provided through a connection to a fuel source,such as a larger remote source, or a local fuel storage container. Forsafety purposes, at the point of connection between the device or systemand the fuel source, one or more safety valves may be utilized, forexample, that allow for fuel flow in the presence of a usableconnection. Occasionally, a usable connection is made, but theconnection may not be completely sealed (e.g., due to cross-threading ofconnections). As an example, a poorly sealed connection may lead toleakage of the fuel.

SUMMARY

This Summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This Summary is not intended to identify key factors oressential features of the claimed subject matter, nor is it intended tobe used to limit the scope of the claimed subject matter.

As provided herein, one or more systems and methods that maybe used toprovide for an interruption of fuel supply (e.g., in the form of afluid), such as a liquid or gas fuel supply, when experiencing ancondition outside of intended use parameters, such as a poor connectionbetween the fuel source and the device or system utilizing the fuel. Forexample, such a system may be used to interrupt the flow of a fluid to acombustion device when the system is exposed to elevated temperatures,which may be indicative of the condition outside of intended useparameters.

In one implementation, a system for mitigating fluid flow at apredetermined temperature can comprise a valve body with a distal endthat interfaces with at least a portion of a connection to a fluidsupply (e.g., a gas or liquid fuel supply). In this implementation, thevalve body can comprise a proximal end that has an intake interfaceportion that may interface with at least a portion of a fluid intake ofa target device. Further, the valve body can comprise an internalpassage that runs between the proximal end and distal end of the valvebody. In this implementation, a displacement member can be disposed inthe internal passage, and may comprise a distal portion that extends outof the valve body at the distal end to engage a valve to the fluidsupply. The displacement member can also comprise a proximal stop thatis disposed toward the proximal end of the displacement member.

Additionally, in this implementation, the system can comprise aretention cap that may be selectably engaged with the valve body at thedistal end. The retention cap can comprise a material that deforms underforce at a predetermined temperature, which can result in a release ofthe displacement member from a preset position in the valve body. Thesystem can also comprise a biasing component that is disposed in theinternal passage. The biasing component can apply a biasing force to theproximal stop of the displacement member at the biasing component'sdistal end, and apply a biasing force to the retention cap at thebiasing component's proximal end.

To the accomplishment of the foregoing and related ends, the followingdescription and annexed drawings set forth certain illustrative aspectsand implementations. These are indicative of but a few of the variousways in which one or more aspects may be employed. Other aspects,advantages and novel features of the disclosure will become apparentfrom the following detailed description when considered in conjunctionwith the annexed drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

What is disclosed herein may take physical form in certain parts andarrangement of parts, and will be described in detail in thisspecification and illustrated in the accompanying drawings which form apart hereof and wherein:

FIG. 1 is a sectional view of one implementation of atemperature-sensitive fluid flow interruption device.

FIGS. 2A and 2B are a sectional view of example implementations of oneor more portions of one or more systems described herein.

FIG. 3 is a sectional view of one implementation of atemperature-sensitive fluid flow interruption device.

FIG. 4 is a detail view of the sectional view of one or more portions ofone or more systems described herein.

FIG. 5 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 6 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 7 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 8 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 9 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 10 is a component diagram illustrating one or more portions of oneor more systems described herein.

FIG. 11 is a graph illustrating a function that substantiallyapproximates one or more portions of one or more systems describedherein.

FIG. 12 is a sectional view of an alternate implementation of atemperature-sensitive fluid flow interruption device.

FIGS. 13A, 13B and 13C are a component diagrams illustrating one or moreportions of one or more systems described herein.

FIGS. 14A, 14B, 14C, 14D and 14E are a component diagrams illustratingone or more portions of one or more systems described herein.

FIGS. 15A and 15B are a component diagrams illustrating one or moreportions of one or more systems described herein.

FIGS. 16A and 16B are a component diagrams illustrating one or moreportions of one or more systems described herein.

FIGS. 17A, 17B and 17C are a component diagrams illustrating one or moreportions of one or more systems described herein.

FIG. 18 is a component diagram illustrating an implementation of one ormore portions of one or more systems described herein.

FIG. 19 is a component diagram illustrating an implementation of examplesystem where one or more portions of one or more systems describedherein may be utilized.

FIG. 20 is a component diagram illustrating an alternate implementationof an example intake valve where one or more portions of one or moresystems described herein may be utilized.

FIGS. 21A and 21B are component diagrams illustrating an alternateexample intake valve where one or more portions of one or more systemsdescribed herein may be utilized.

FIG. 22 is a component diagram illustrating a portion of an alternateimplementation of an example intake valve where one or more portions ofone or more systems described herein may be utilized.

FIG. 23 is a component diagram illustrating an alternate implementationof an example intake valve where one or more portions of one or moresystems described herein may be utilized.

FIG. 24 is a component diagram illustrating an example implementation ofone or more systems described herein.

DETAILED DESCRIPTION

The claimed subject matter is now described with reference to thedrawings, wherein like reference numerals are generally used to refer tolike elements throughout. In the following description, for purposes ofexplanation, numerous specific details are set forth in order to providea thorough understanding of the claimed subject matter. It may beevident, however, that the claimed subject matter may be practicedwithout these specific details. In other instances, structures anddevices may be shown in block diagram form in order to facilitatedescribing the claimed subject matter.

A device and system may be devised that can be used to interrupt flow offluid from a fluid source (e.g., fuel source) to a target device (e.g.,a device using combustion of fuel). In one implementation, a type ofsacrificial component can be disposed at one end of a fluid intakevalve, where the sacrificial component is configured to deform whenexposed to predetermined, elevated temperatures. That is, for example,the sacrificial component can comprise a material that is configured todeform at a predetermined temperature, and the deformation can result ina change in the function of the intake. In this example, the deformationof the sacrificial component at the one end can result in displacementof another valve component that prevents it from functioning to allowfluid flow. Further, for example, only replacement of the sacrificialcomponent with a replacement part would allow the intake valve to returnto appropriate functioning condition.

FIG. 1 is a component diagram illustrating an example implementation ofa system and device 100 for mitigating flow of fluid under undesirableconditions. The example device 100 comprises a valve body 120. The valvebody 120 can comprise a distal end 102 and a proximal end 104. Thedistal end 102 can be configured to interface with at least a portion ofa connection to a fluid supply, such a fluid storage container and/orother fluid source (e.g., pressurized) For example, the fluid source canbe a fuel supply that comprises a pressurized fuel in liquid form (e.g.,or a non-pressurized liquid fuel). Further, as an example, the fluidflow may comprise a flow of liquid fuel or a flow of fuel in gas form(e.g., when pressurized liquid fuel transforms to a gas form for use incombustion). The proximal end 104 can comprise an intake interfaceportion that is configured to interface with at least a portion of afluid intake, such as a fluid intake of a target device (e.g., a heateror some other device or system that uses combustion of fuel). Further,the valve body 120 can comprise an internal passage 126 that runsbetween the proximal end 104 and distal end 102 of the valve body 120.

In FIG. 1, in this example implementation, a displacement member 140 canbe disposed in the internal passage 126. The displacement member 140 cancomprise a distal portion 106 that extends out of the valve body 120 atthe distal end 102. In one implementation, as shown below, the distalportion 106 can be configured to engage a valve to the fuel supply.Further, the displacement member 140 can comprise a proximal stop 164that is disposed toward the proximal end 104 of the displacement member140.

In this implementation, the example device 100 can comprise a retentioncap 180. The retention cap 180 can be selectably engaged with the valvebody 120 at the proximal end 104. Further, the retention cap 180 cancomprise a material that deforms under force, at a predeterminedtemperature. In one implementation, the deformation can result in arelease of the displacement member 140 from a preset position in thevalve body 120. Additionally, the example device 100 can comprise abiasing component 160 that is disposed in the internal passage 126. Inthis example, the biasing component 160 can apply a biasing force to theproximal stop 164 of the displacement member 140 at the biasingcomponent's distal end 108. The biasing component 160 can also apply abiasing force to the retention cap 180 at the biasing component'sproximal end 110, such as at a biasing stop 162 on the cap 180.

As an illustrative example, the example device 100 of FIG. 1 can becoupled to a fuel source connection that comprises a Schrader-type valvein engagement with the distal portion 106 of the displacement member140. In this example, the Schrader-type valve can apply a force towardthe proximal end 104 of the valve body 120. However, the biasing forceof the biasing component 160 against the proximal stop 164 of thedisplacement member 140 can be configured to overcome (e.g., is greaterthan) the force of the Schrader-type valve, thereby allowing theSchrader-type valve to open.

Further, as one example, the example device 100 may be subjected toelevated temperatures that reach the predetermined temperature level. Inthis example, the predetermined temperature level may be set to beindicative of a condition outside of specified use, such as hightemperatures resulting from unspecified combustion (e.g., due to fuelleakage and combustion). The retention cap 180 can be subjected to thebiasing force from the biasing component 160, at least at the proximalend of the retention cap 180. Additionally, in this example, at thepredetermined temperature, the material comprised in the retention cap180 may begin to deform under the biasing force. That is, for example,as the material deforms (e.g., becomes pliable and loses rigidity), atleast a portion of the retention cap 180 can deform, and the proximalend 110 of the biasing component may move away from the proximal stop164 of the displacement member 140. In this example, as the proximal end110 of the biasing component moves away from the proximal stop 164 ofthe displacement member 140, the amount of biasing force applied to theproximal stop 164 is reduced. As the biasing force applied to theproximal stop 164 is reduced below the force (e.g., less than) of theSchrader-type valve, the displacement member may be forced toward theproximal end 104 of the valve body 120. In this way, in this example,the displacement member 140 has been released from its preset position(e.g., preset when coupled with the Schrader-type valve) in the valvebody 120.

FIGS. 2A, 3, 9 and 10 are component diagrams illustrating one exampleimplementation of a device for mitigating fuel flow at a predeterminedtemperature. With continued reference to FIG. 1, in one aspect, a device(e.g., retention cap 180) may be used with a fluid flow valve tomitigate fuel flow in conditions operated outside of specified use. Inone implementation, such a device can comprise a valve engagementcomponent 182. The valve engagement component 182 can be configured tofixedly engage with a proximal end 218 of a pressurized fluid intakevalve 200. In one implementation, as illustrated in FIGS. 1 and 6, thevalve engagement component 182 can be configured to engage with aretention cap engagement component 129 disposed on the interior surfaceof the proximal end 104 of the valve 100. As one example, the valveengagement component 182 may comprise a set of screw threads that areconfigured to couple with complementary threads in the retention capengagement component 129. In this way, in this example, the device(e.g., retention cap 180) can be selectably threaded into and out of thevalve body 120, at its proximal end 104. Other examples of a valveengagement component 182 can include a press fit engagement with thevalve body 102, quick connect couplings, universal couplings, quicklock, twist lock, or any other suitable fitting/coupling selected usingsound engineering judgement for the application.

In this implementation, in this aspect, the example device can comprisea biasing stop 162 that can be configured to provide a proximal stop forthe biasing component (e.g., biasing component 160) that is disposed inthe intake valve 100. In one implementation, the device may comprise analternate biasing stop, such as a cap shoulder stop 184 that is recessedinto an internal cavity 188 in the device. That is, for example, thebiasing stop 162 can be configured to engage with the proximal end 110of the biasing component, such that a biasing force is applied to theexample device (e.g., retention cap 180) at the location of the biasingstop 162 (e.g., or cap shoulder stop 184 alternatively).

In this implementation, the example device may further comprise aninternal cavity 188 that comprises an opening 194 at its distal end 192.The internal cavity 188 can be so dimensioned to receive a proximal end196 of a displacement member 140 in the intake valve 100. That is, forexample, the internal cavity 188 can be of a size and shape that allowsthe displacement member 140 to be translated (e.g., slid laterally)inside the cavity 188. As an example, when the intake valve 100 isassembled, the displacement member 140 may be inserted into the internalcavity 126 prior to engaging the retention cap 180 with the valve, inthis example, the cavity 188 can allow the proximal end 196 of thedisplacement member 140 to slide into the retention cap 180 whenassembled.

In this implementation, the example device can additionally comprise awall 198 that defines at least a portion of the cavity 188. In oneimplementation, at least a portion of the wall 198, the valve engagementcomponent 182, and/or the biasing stop 162 can be comprised of amaterial that deforms at a predetermined temperature. In thisimplementation, the deformation of the material can result in a releaseof the biasing component 160 from a preset position in the intake valve.As described above, for example, when the material is subjected toelevated temperatures it can deform (e.g., become pliable). In thisexample, the deformation of the material may allow the proximal end 110of the biasing component 160 to move from the preset position by pushingat least a portion of the device (e.g., retention cap 180) toward theproximal end of the valve 104.

A method may be devised for making a fuel intake valve. For example, thefuel intake valve may be made to provide for interruption of fuel flowfrom a fuel source, such as to a device that uses the fuel forcombustion (e.g., heater, stove, etc.). In one implementation of anexemplary method, the method for making a fuel intake valve can comprisedisposing a displacement member (e.g., 140) in an internal passage(e.g., 126) of a valve body (e.g., 120). In this implementation, thedisplacement member can comprise a distal portion (e.g., 106) thatextends out of the valve body at the distal end (e.g., 102) to engage avalve to the fuel supply. Further, the displacement member can comprisea proximal stop (e.g., 164) that is disposed toward the proximal end(e.g., 196) of the displacement member.

Additionally, in this implementation of an exemplary method, the distalend of the valve body can be configured to interface with at least aportion of a connection to the fuel supply. In this implementation, thevalve body can also comprise a proximal end (e.g., 104) that comprisesan intake interface portion (e.g., 122). The intake interface portioncan be configured to interface with at least a portion of a fuel intake,such as an intake for a target device. That is, for example, the intakeinterface portion may be configured to threadedly engage with a portionof a regulator of the target device. In this implementation, theinternal passage of the valve body can comprise a passage that runsbetween the proximal end and distal end of the valve body. It should benoted, that while a portion of the interface of the fluid or fuel intakecan comprise a regulator, in alternate implementations it may comprise aconnection to the target device, and/or a connection with a remote hosethat leads to the target device, or other interfaces between a fuelsupply and a target device.

In the exemplary method, a retention cap (e.g., 180) can be engaged withthe valve body at the valve body's distal end. In this implementation,the retention cap can comprise a material that deforms under force at apredetermined temperature. For example, the retention cap 180 cancomprise a polymer, eutectic alloy, polypropylene (PP), or a linear lowdensity polyethylene (LLDPE), other type of plastics, and/orcombinations of various polymers (e.g., 40% LLDPE and 60% PP). Further,the deformation can result in a release of the displacement member froma preset position in the valve body. Additionally, in the method, abiasing component (e.g., 160) can be disposed in the internal passage,such that the biasing component applies a biasing force to the proximalstop of the displacement member at the biasing component's distal end(e.g., 108); and the biasing component can apply a biasing force to theretention cap at the biasing component's proximal end (e.g., 110). Inthis way, a biasing force can be applied to the retention cap, whichallows for the release of the displacement member when the materialdeforms.

As an illustrative example, with reference to FIGS. 2-4 and continuedreference to FIGS. 11, 6, 9 and 10, FIGS. 2-4 are component diagramsillustrating an implementation of a pressure regulator 200 comprising atemperature-sensitive fluid flow interruption device 100. In thisexample implementation, the pressure regulator 200 may comprise an inletport 210 adapted for fluid communication with a fluid supply 202 (e.g.,pressurized fuel container). A fluid supply, may be referred to hereinas a “bottle,” and may comprise a bottle, tank, reservoir, or othercontainer adapted for holding gaseous or fluid material; and may alsoinclude remote fuel sources, such as connections to utility (or otherremote) sources of fuel. Without limitation, fluid supply 202 may be abottle for, or a bottle adapted to contain, or a bottle containing,propane, propene, MAPP gas, methylacetylene-propadiene, oxygen, nitrousoxide, natural gas, methane, ethane, butane, liquid petroleum gas,hydrogen, HCNG, helium, neon, argon, nitrogen, carbon dioxide, any othergas, or mixtures thereof. In certain implementations a pressureregulator 200 may comprise an opening 214 adapted for a fluidcommunicative connection with a temperature-sensitive fluid flowinterruption device 100. The pressure regulator 200 may comprise anopening 216 adapted for a fluid communicative connection with a fluidsupply 202. Openings 214 and 216, disposed at the proximal end 218 ofthe pressurized fluid intake valve 200 (e.g., regulator) may besubstantially fixed in relationship to one another such that atemperature-sensitive fluid flow interruption device 100 and a fluidsupply 202 connected thereto may be positively located with respect toone another. In certain implementations, and without limitation,openings 214 or 216 may comprise female threads, male threads, clampingregions, or other fluid communicative connection elements. In theimplementation shown in FIGS. 2-3, the temperature-sensitive fluid flowinterruption device 100 is connectable to opening 214 to form a fluidcommunicative connection therebetween.

In the implementations shown in FIG. 2-4, the fluid supply 202 maycomprise a connector 203 adapted for fluid communicative connection tothe opening 216 of the pressure regulator 200. In certainimplementations, and without limitation, connector 203 may comprisecomplementary threads, clamping regions, or other fluid communicativeconnection elements. In the implementation shown in FIG. 3, theconnector 203 may comprise threads and is threaded into complementarythreads in the threaded opening 216 to form a fluid communicativeconnection therebetween. Connector 203 can also include a Schrader-typevalve 204 (e.g., or poppet valve) located within a channel 205 in theconnector 203. A Schrader-type valve 204 can comprise a valve consistingof an opening (not shown), a plug 206, and, optionally, a valve stemshaft 207 operatively engaged with said plug 206. Schrader-type valves204 can be normally-open or normally-closed valves. In certainimplementations, and without limitation, the Schrader-type valve 204 maycomprise a Schrader valve or other kind of Schrader-type valve. ASchrader valve is a normally-closed Schrader-type valve wherein the plug206 is connected to a valve stem 207 and wherein the plug 206 is held ina normally-closed position by a biasing component (not shown) that isadapted to exert a closure force on the plug 206. As used herein, unlessotherwise noted, a Schrader-type valve 204 is a Schrader valve. ASchrader-type valve 204 can be opened by application of a force greaterthan the Schrader-type valve closure force to the plug 206 to move theplug 206 out of its closed position and, thereby, to open the valve topermit fluid flow. In certain implementations, the force to open theSchrader-type valve 204 is applied to the valve stem 207 and, thereby,to the plug 206.

The temperature-sensitive fluid flow interruption device 100 maycomprise a valve body 120, a displacement member 140, a biasingcomponent 160 (e.g., spring), and a retention cap 180. Someimplementations of the temperature-sensitive fluid flow interruptiondevice 100 comprise optional components such as a gasket 185 (e.g.,O-ring) or other components. The temperature-sensitive fluid flowinterruption device 100 is adapted for compatibility with fluid flowduring operation in one temperature region and is adapted to interruptfluid flow during operation in a second temperature region. Withoutlimitation, adaptations to interrupt fluid flow during operation in asecond temperature region may comprise movement, displacement,deformation, breakage, fracture, bending, melting, or other changes in apart, component, or sub-assembly of the temperature-sensitive fluid flowinterruption device 100.

In some implementations, without limitation, adaptations to interruptfluid flow during operation in a second temperature region comprisemovement or displacement of one or more components of thetemperature-sensitive fluid flow interruption device 100 away from aposition necessary to maintain fluid flow. In some implementations,during operation in a first temperature region, a component of thetemperature-sensitive fluid flow interruption device 100 forms aninterference with a Schrader-type valve 204 displacing the Schrader-typeplug 206 to open the valve against the valve's biasing component, whileduring operation in a second temperature region the valve's biasingcomponent displaces the component of the temperature-sensitive fluidflow interruption device 100 permitting the Schrader-type plug 206 toclose the valve. In some implementations, without limitation, thetemperature-sensitive fluid flow interruption device 100 is adapted forre-use after functioning to interrupt of fluid flow through adaptationsto interrupt fluid flow during operation in a second temperature regioncomprising only changes in the position of components with respect toone another, such that resetting the temperature-sensitive fluid flowinterruption device 100 to a position compatible with fluid flow is onlya matter of moving the original components back to their original state.

In some implementations, the valve body 120 may comprise a polygon shapeor any shape chosen with sound engineering judgment. Without limitation,the shape of the valve body may be polygonal or irregular in shape. Asused herein, polygonal may comprise both 1) a polyhedron with twopolygonal faces lying in parallel planes and with the other facesparallelograms and 2) a cylinder. In general, the surfaces of a cylinderare the end surfaces and the curved surface between the end surfaces;the curved surface between the end surfaces will be referred to as thelateral surface. The valve body 120 may comprise an intake interfacecomponent 122 adapted for connection with a fluid intake of a targetdevice, such as a pressure regulator 200 for a fuel combusting device.In certain implementations, the valve body 120 may comprise an elongatedportion 124 at the distal portion 106 of the valve body 120. Further,the valve body 120 can comprise an internal passage 126 disposed insidethe valve body 120, and running from the proximal 104 to the distal ends102. The internal passage 126 may comprise a distal cavity 125 a,disposed in the elongated portion 124. The cross-section of the distalcavity 125 a may be circular, ovoid, polygonal or other shape and mayvary in size, shape or other properties, along the length of the distalcavity 125 a.

As shown in FIGS. 6-8, in certain implementations, the internal passage126 may comprise a variety of internal diameters, defining differentcavities, including a proximal cavity 125 b disposed at the proximalend. Without limitation, cavities 125 a and 125 b may differ ingeometry, shape, and size. In certain implementations, cavities 125 aand 125 b are polygonal. In certain implementations, cavities 125 a and125 b are both cylindrical and differ in diameter. In certainimplementations, without limitation, as shown in FIGS. 6-8, the distalcavity 125 a may comprise axial facing interior surfaces 121 or surfaceswith facings having an axial component 123, which may act as sealingsurfaces. In certain implementations, without limitation, as shown inFIGS. 6-8, axial facing interior surfaces 121 or surfaces with facingshaving an axial component 123 are positioned between cavities such as125 a and 125 b.

In certain implementations, the cross-sectional area of the distalcavity 125 a may be sufficiently large to at least partially accommodatea valve stem 207, such as disposed in a fluid source connection (e.g.,see FIG. 4). In certain implementations, the valve body 120 may comprisean abutment surface 127 disposed on the exterior, that can be configuredto contact against and/or form a seal with a facing surface (e.g., asshown in FIGS. 2 and 3) of pressure regulator 200. In certainimplementations, the valve body 120 may comprise tool interface surface128 disposed on its exterior, that can be configured to interface with atool (not shown) during rotation, assembly, repair, refurbishment,installation, removal, or other operations performed with or upon thevalve body 120 or the temperature-sensitive fluid flow interruptiondevice 100. In certain implementations, the tool interface surface 128may comprise at least part of a substantially regular polygonal shapeadapted for use with a conventional wrench or socket (not shown). Asshown in FIG. 7, in certain implementations, tool interface surface 128may comprise parts of a regular hexagonal polygon. In certainimplementations, the tool interface surface 128 is adapted to resistengagement of certain tools. In certain implementations, the toolinterface surface 128 is adapted to resist tampering. In certainimplementations, the tool interface surface 128 is adapted forengagement with tools adapted for use with tamper-resistant fasteners orsecurity fasteners. In certain implementations, the tool interfacesurface 128 is adapted to substantially prevent or inhibit the use oftools not adapted for use with security fasteners. In certainimplementations, the tool interface surface 128 is pentagonal ortriangular and is adapted for use with pentagonal or triangular securityfastener tools.

In certain implementations, the valve body 120 of the example system ordevice 100 may comprise a retention cap engagement component 129. Theretention cap engagement component 129 can be configured to selectably,removably engage the retention cap 180. In certain implementations theretention cap engagement component 129 may comprise screw threads,surfaces or holes to accept pins, keys, clamps, clips or othermechanical fasteners, or other adaptations to selectably, removablyengage the retention cap 180. In these implementations, the retentioncap 180 can comprise complementary engagement components. In certainimplementations the retention cap engagement component 129 may beadapted to accept the press fitted retention cap 180.

In one implementation, the displacement member 140 may comprise anelongated distal portion 148 that is configured and sized toappropriately, and slidably engage with the internal passage 126 of thevalve body 120. The elongated distal portion 148 can be configured toselectably engage with Schrader-type valve 204 in a connection to afluid source. The displacement member 140 may comprise a displacementmember longitudinal axis 147, the elongated distal portion 148, aproximal end 149, a flange 142, and a displacement member shoulder 144.The elongated distal portion 148 can be configured for selectableengagement with a Schrader-type valve 204, or for selectable engagementwith a component of a Schrader-type valve 204, such as, withoutlimitation, a valve stem 207.

In one implementation, the displacement member 140 can optionallycomprise a gasket holder area 146 (e.g., O-ring retention geometry),that is configured to selectably retain a gasket in engagement with thedisplacement member 140. In certain implementations the displacementmember 140 may comprise a pin, shaft, stick, prong, probe, spindle,arbor, bar, bolt, or other elongated member. In certain implementationsthe displacement member 140 may comprise a metal, metal alloy, orcombination thereof. In certain implementations the displacement member140 may comprise a polymer, a eutectic alloy or a linear low densitypolyethylene (LLDPE). In certain implementations, the displacementmember 140 may comprise materials that have material properties that aresubstantially affected by temperature. In certain implementations thedisplacement member 140 may comprise materials that have materialproperties that change substantially as temperature changes betweentemperatures below a predetermined temperature and temperatures above apredetermined temperature. In certain implementations, the displacementmember 140 may comprise materials that have material properties thatchange substantially as temperature changes between temperatures below apredetermined temperature and temperatures above a predeterminedtemperature; wherein the material properties comprise at least one ofmodulus of elasticity, yield strength, static coefficient of frictionwith respect to the surface material of the elongated portion 126,dynamic coefficient of friction with respect to the surface material ofthe elongated portion 126, coefficient of thermal expansion, compressivestrength, tensile strength, and shear strength.

In one implementation, the biasing component 160 may comprise a type ofspring that produces a biasing force against components with which it isengaged. In some implementations, the biasing component 160 is elongatedand may comprise a longitudinal axis, a proximal end 110 and a distalend 108. In certain implementations, the biasing force may be anon-linear function of displacement of the proximal end 110 with respectto the distal end 108, a quadratic function of displacement of theproximal end 110 with respect to the distal end 108, a linear functionof displacement of the proximal end 110 with respect to the distal end108, or have some other relationship to displacement of the proximal end110 with respect to the distal end 108. In certain implementations, thebiasing force of the biasing component 160 is a function of displacementof the proximal end 110 with respect to the distal end 108 and is also afunction of the temperature of biasing component 160. In certainimplementations, biasing component 160 may comprise a coil biasingcomponent, a leaf biasing component, a compression biasing component, atension biasing component, a cupped biasing component washer, anelastomer, or combinations thereof.

Without limitation, the biasing force of the coil biasing components andleaf biasing components often comprises a substantially linear functionof displacement of the proximal end 110 with respect to the distal end108. In certain implementations, the biasing component 160 may comprisea polymer, metal, metal alloy, or combination thereof. In certainimplementations, the biasing component 160 may comprise a eutectic alloyor a linear low density polyethylene (LLDPE). In certainimplementations, the biasing component 160 may comprise materials thathave material properties that are substantially affected by temperature.In certain implementations, the biasing component 160 may comprisematerials that have material properties that change substantially astemperature changes between temperatures below a predeterminedtemperature and temperatures above a predetermined temperature. Incertain implementations, the biasing component 160 may comprisematerials that have material properties that change substantially astemperature changes between temperatures below a predeterminedtemperature and temperatures above a predetermined temperature; whereinsaid material properties comprise at least one of modulus of elasticity,yield strength, static coefficient of friction with respect to thesurface material of the elongated portion 126, dynamic coefficient offriction with respect to the surface material of the elongated portion126, coefficient of thermal expansion, compressive strength, tensilestrength, and shear strength.

In certain implementations, a retention cap 180 may comprise valveengagement components 182 adapted for selectable removable engagementwith a retention cap engagement component 129 of valve body 120. Incertain implementations, valve engagement components 182 comprisethreads, or other adaptations to removably engage retention capengagement component 129. In certain implementations, a retention cap180 may comprise a retention cap biasing component retention surface 184configured to engage with a proximal end 110 of biasing component 160.

In certain implementations, a retention cap 180 may comprise a toolinterface region 186 adapted for engagement with tool (not shown). Incertain implementations, a retention cap 180 is adapted to capture, oract as a barrier to, or substantially resist the passage of thedisplacement member flange 142. The tool interface region 186 may beengaged with a tool during rotation, assembly, repair, refurbishment,installation, removal, or other operations performed with or upon thetool interface region 186, the retention cap 180, the valve body 120, orthe temperature-sensitive fluid flow interruption device 100. In certainimplementations, the tool interface region 186 is adapted to resistengagement of certain tools. In certain implementations, the toolinterface region 186 is adapted to resist tampering. In certainimplementations, the tool interface region 186 is adapted for engagementwith tools adapted for use with tamper-resistant fasteners or securityfasteners. In certain implementations, the tool interface region 186 isadapted to substantially prevent the use of tools not adapted for usewith security fasteners. In certain implementations, the tool interfaceregion 186 is adapted for use with tools adapted for use with securityfasteners comprising, spanner fasteners, Phillips pin-head fasteners,socket pin-head fasteners, various other pin-head fasteners, othertamper-resistant fasteners.

In certain implementations, the retention cap 180 can be configured toreceive at least a portion of the biasing component 160, and engage thebiasing component 160 with an internal shoulder 184. Further, retentioncap 180 can be configured to receive at least a portion of the biasingcomponent 160 at a cap shoulder stop 162, within elongated portion 126by acting as a removable barrier to removal of biasing component 160. Incertain implementations, the retention cap 180 may comprise an internalcavity 188 adapted to permit axial insertion and passage therethrough ofdisplacement member 140 or components of the displacement member 140.

In certain implementations, the displacement member 140 is axiallyinserted, at least partially, into the internal passage 126 of the valvebody 120. In certain implementations, the displacement member 140 formsa press fit with the interior surface of the elongated portion 126. Thatis, for example, the displacement member is fixedly engaged with theinterior sides of the elongated portion 126, and held in place byfriction fit, which is sufficient to overcome the Schrader-type valvebiasing force. In certain implementations in which the displacementmember 140 is engaged with a gasket, the gasket has a press fit withrespect to the displacement member 140 and the O-ring has a press fitwith respect to the internal passage 126. In certain implementations,the forces involved in the press fit between two members may besufficient to retain and thereby axially position the fitted memberswith respect to one another. In certain implementations, thedisplacement member 140 forms a clearance fit with the interior surfaceof the internal passage 126. As an example, the displacement member 140may be subjected to elevated temperatures that deform or loosen thepress-fit placement, resulting in the clearance fit disposition. Biasingcomponent 160 may comprise a proximal end 110 operatively engageablewith a displacement member shoulder 144 of the displacement member 140.Biasing component 160 also may comprise a distal end 108. The distal end108 may be operatively engageable with a retention cap shoulder (e.g.,or internal shoulder 184) of retention cap 180. The valve engagementcomponents 182 of retention cap 180 can selectably engage retention cap180 with retention cap engagement component 129 of valve body 120.

In certain implementations, displacement member 140 may be axial locatedby axially locating flange 142 against an axial facing interior surfaces121 or surfaces with facings having an axial component 123. Flange 142may be located against an axial facing interior surfaces 121 or surfaceswith facings having an axial component 123 by biasing the flange 142against the surface or surfaces with forces from biasing component 160or from force from the retention cap 180 exerted directly or indirectlyupon the flange 142, or displacement member 140 or components thereof.

In certain implementations, the engagement of the displacement member140 with the internal passage 126 is a function of temperature. Incertain implementations, the displacement member 140 occupies, at leastpartially, the internal passage 126; at temperatures below apredetermined temperature, the fit between the displacement member 140and the at least partially occupied internal passage 126 is a press fit;at temperatures above a predetermined temperature, the fit between thedisplacement member 140 and the at least partially occupied internalpassage 126 is a clearance fit.

In certain implementations, the displacement member 140 engages theSchrader-type valve 204 or an element engaged to the Schrader-type valve204 to the biasing component 160 and thereby, to the retaining cap 108and, thereby to the valve body 120, and thereby, to the internal passage126. In certain implementations, a high stiffness of the displacementmember 140 produces a firm assembly of parts and components between thedisplacement member 140 and the retention cap 180. In certainimplementations, the biasing component 160 engages the displacementmember 140 to the retaining cap 108 and, thereby to the valve body 120,and thereby, to the elongated portion 126. A high stiffness of thebiasing component produces a hard assembly of the biasing component 160and the displacement member 140; that is, the assembly is “firm” in thatlarge forces or stresses are required to produce small strains ordisplacements between at least one element of the displacement member140 and at least one element of the elongated portion 126.

In certain implementations, the performance of biasing component 160 isa function of temperature. In certain implementations, the restorativeforce of the biasing component 160 is a function of displacement of thefirst biasing component end 162 with respect to the second biasingcomponent end 164 and is also a function of the temperature of biasingcomponent 160. In certain implementations, the stiffness of the biasingcomponent 160 is substantially constant at a given temperature. Attemperatures below a predetermined temperature, the biasing component160 has a high stiffness. At temperatures above a predeterminedtemperature, the biasing component 160 has a low stiffness. In certainimplementations, the stiffness of the biasing component 160 is asubstantially linear function of temperature. In certainimplementations, the stiffness of the biasing component 160substantially approximates a step-wise function of temperature; that isthe stiffness of the biasing component 160 changes dramatically over ashort temperature range. For sake of illustration, and withoutlimitation, a function that substantially approximates a step-wisefunction of stiffness with respect to temperature is illustrated in FIG.11.

Device temperatures may change after assembly. Accordingly, in somecircumstances, the temperature-sensitive fluid flow interruption device100 may be assembled with fluid supply 202 at a temperature below thepredetermined temperature and the assembly may subsequently attain atemperature above the predetermined temperature. Similarly, in somecircumstances, the temperature-sensitive fluid flow interruption device100 may be assembled with fluid supply 202 at a temperature above thepredetermined temperature and the assembly may subsequently attain atemperature below the predetermined temperature. In either case, thefunctionality of the assembly at the time of assembly may differ fromthe functionality of the assembly once its temperature changes.

In some circumstances a temperature-sensitive fluid flow interruptiondevice 100 that performs as a firm assembly is connected to a fluidsupply 202 comprising a normally-closed Schrader-type valve 204 at atemperature below the predetermined temperature in a manner to permitfluid flow. Such assembly will subject the Schrader-type valve 204 andthe displacement member 140 to force greater than the Schrader-typevalve closure force and will displace the plug 206 from its closedposition in order to open the valve to permit fluid flow. If theconnected temperature-sensitive fluid flow interruption device 100subsequently attains a temperature above the predetermined temperature,the temperature-sensitive fluid flow interruption device 100 will ceasefunctioning as a hard assembly and will begin functioning as a softassembly; consequently, the force between the Schrader-type valve 204and the displacement member 140 will suffice to displace thedisplacement member 140 from its position within elongated portion 126,sliding displacement member 140 further into elongated portion 126, andallowing the Schrader-type valve closure force to return the plug 206 tothe closed position and to close the valve to fluid flow.

In some circumstances a temperature-sensitive fluid flow interruptiondevice 100 that performs as a soft assembly is connected to a fluidsupply 202 comprising a normally-closed Schrader-type valve 204 at atemperature above the predetermined temperature. Such assembly cannot berelied upon to open the valve in a manner that is non-transient becausethe soft assembly state of the temperature-sensitive fluid flowinterruption device 100 will cause the internal forces of assembly todisplace the displacement member 140 from its position within elongatedportion 126 and allow closure of the Schrader-type valve 204 by closureforces either immediately or very shortly after assembly. If theconnected temperature-sensitive fluid flow interruption device 100subsequently attains a temperature below the predetermined temperature,the temperature-sensitive fluid flow interruption device 100 will ceasefunctioning as a soft assembly and will begin functioning as a hardassembly; however, the displaced displacement member 140 will notspontaneously return to its pre-displacement position; it will stay inthe valve-closed position. Consequently, the force between theSchrader-type valve 204 and the displacement member 140 will not besufficient to open the valve to fluid flow.

The temperature of the temperature-sensitive fluid flow interruptiondevice 100 may change or fluctuate. The temperature-sensitive fluid flowinterruption device 100 may attain temperatures above the predeterminedtemperature for many reasons. Without limitation, thetemperature-sensitive fluid flow interruption device 100 may attaintemperatures above the predetermined temperature due to elevation ofenvironmental temperatures due to nearby fire, flames, or combustion. Incertain implementations, the predetermined temperature is similar totemperatures attained during combustion in air at one atmosphere ofpropane, propene, MAPP gas, methylacetylene-propadiene, natural gas,methane, ethane, butane, liquid petroleum gas, hydrogen, HCNG, town gas,syngas, wood gas, or mixtures thereof. In certain implementations, thepredetermined temperature is similar to the maximum safe storagetemperature of the lower of the bottle or for the fluid within thebottle. In certain implementations, the predetermined temperature isbetween 136 degrees Fahrenheit and 940 degrees Fahrenheit.

In the example implementation illustrated in FIG. 2 thetemperature-sensitive fluid flow interruption device 100 is engaged witha pressure regulator 200. Pressure regulator 200 may comprise an opening216 that is aligned for engagement with the connector 203 of fluidsupply 202. When engaged, the engagement of pressure regulator 200 withfluid supply 202 engages the temperature-sensitive fluid flowinterruption device 100 with the Schrader-type valve 204. In FIG. 2, thetemperature-sensitive fluid flow interruption device 100 is shown in astate that, if the temperature of the device is below the predeterminedtemperature, will open the Schrader-type valve 204 if engaged therewith;the displacement member 140 is shown extending from the valve body 120such that engagement with Schrader-type valve 204 will depress the valvestem 207, move the plug 206 out of its closed position and, thereby, toopen the valve to permit fluid flow.

In the example implementation illustrated in FIG. 3 thetemperature-sensitive fluid flow interruption device 100 is engaged witha pressure regulator 200. Pressure regulator 200 may comprise an opening216 that is engaged with the connector 203 of fluid supply 202. Theengagement of pressure regulator 200 with fluid supply 202 engages thetemperature-sensitive fluid flow interruption device 100 with theSchrader-type valve 204. As shown in detail in FIG. 4, thetemperature-sensitive fluid flow interruption device 100 is in its flowinterruption state; the displacement member 140 is shown recessed intothe valve body 120 such that engagement with Schrader-type valve 204will not depress the valve stem 207, will not move the plug 206 out ofits closed position and, will not open the valve to permit flow.

While the temperature-sensitive fluid flow interruption device 100 hasbeen described above in connection with the certain implementations, itis to be understood that other implementations may be used ormodifications and additions may be made to the described implementationsfor performing the same function of the temperature-sensitive fluid flowinterruption device 100 without deviating therefrom. Further, thetemperature-sensitive fluid flow interruption device 100 may includeimplementations disclosed but not described in exacting detail. Further,all implementations disclosed are not necessarily in the alternative, asvarious implementations may be combined to provide the desiredcharacteristics. Variations can be made by one having ordinary skill inthe art without departing from the spirit and scope of the wall mountsystem. Therefore, the temperature-sensitive fluid flow interruptiondevice 100 should not be limited to any single implementation, butrather construed in breadth and scope in accordance with the recitationof the attached claims.

Various operations of implementations are provided herein. In oneimplementation, one or more of the operations described may constitutecomputer readable instructions stored on one or more computer readablemedia, which if executed by a computing device, will cause the computingdevice to perform the operations described. The order in which some orall of the operations are described should not be construed as to implythat these operations are necessarily order dependent. Alternativeordering will be appreciated by one skilled in the art having thebenefit of this description. Further, it will be understood that not alloperations are necessarily present in each implementation providedherein.

In another aspect, an alternate implementation of a device or system maybe devised that can also be used to interrupt flow of fluid from a fluidsource (e.g., fuel source) to a target device (e.g., a device usingcombustion of fuel). In this aspect, the sacrificial component can bedisposed at an alternate location in the fluid intake valve, where thesacrificial component can deform when exposed to predetermined, elevatedtemperatures to interrupt the fluid flow. As an example, the deformationof the sacrificial component in the intake valve can result indisplacement of another component that results in interruption of thefluid flow from the fluid source. Further, for example, replacement ofthe sacrificial component with an appropriate replacement part may allowthe intake valve to return to functioning state.

FIGS. 12-17 are a component diagram illustrating example alternateimplementations of a device for interrupting flow of fluid from a fluidsource. In this example implementation, a body 1202 comprises aninternal passage 1214. A displacement member 1206 is disposed in theinternal passage 1214, and is configured to engage a valve in aconnection to a fluid source, for example, to allow for passage of fluidfrom the source through the example intake valve.

As illustrated in FIGS. 12, 13C, and 16A, in this implementation, thedisplacement member 1206 comprises a sacrificial member 1216, which canbe an elongated component coupled with the displacement member 1206. Inone implementation, the sacrificial member 1216 may be fixedly coupledwith the displacement member 1206. For example, the sacrificial member1216 can be formed (e.g., injection molded) in the displacement member1206. In another implementation, the sacrificial member 1216 can bemerely loosely fitted in contact with the displacement member 1206. Forexample, the sacrificial member 1216 may be configured to rotate in achamber disposed at the distal end of the displacement member 1206 sizedto receive the sacrificial member 1216.

Further, in this implementation, as illustrated in FIGS. 12, 13C, 17A,17B, and 17C, a displacement member tip 1204 can be disposed in theinternal passage 1214, in contact with the sacrificial member 1216 ofthe displacement member 1206. In this implementation, at least a portionof the displacement member tip 1204 can extend from the distal end ofthe internal passage 1214. For example, the portion of the displacementmember tip 1204 extending from the internal passage 1214 can beconfigured to selectably engage with the valve disposed in the fluidsource connection. That is, for example, the displacement member tip1204 may contact the Schrader-type valve disposed in the connection tothe fluid source, such as to cause the Schrader-type valve to open toallow fluid flow.

In this implementation, as illustrated in FIGS. 12 and 13C, the exampledevice can comprise a biasing component 1208, such as a spring that isconfigured to bias the displacement member 1206 toward the distal end ofthe intake valve. Further, the example device can comprise a retentioncap 1210 disposed at the proximal end of the device. The retention cap1210 can be configured to selectably engage with the body 1202 of thedevice, and provide a proximal stop for the biasing component 1208.Additionally, the example device can comprise a gasket 1212 disposedbetween the displacement member 1206 and the wall of the internalpassage 1214.

As an example, the biasing component 1208 can be configured to provide abiasing force that biases the displacement member, and hence thesacrificial member 1216 and displacement member tip 1204 toward thedistal end of the example, device. In this example, the biasing forcecan be greater than a Schrader-type valve biasing force, to which theexample device may be coupled. In this way, the example intake valvedevice can be engaged with the Schrader-type device in a connection to afluid source, resulting in fluid flow from the source to the intakevalve device. Further, as one example, the connection between theexample, device and the Schrader-type valve can utilize complementarythreads. This type of engagement typically involves rotating at leastone of the two components to couple them together. In thisimplementation, the arrangement of the displacement member 1206, thesacrificial member 1216, and the displacement member tip 1204 may allowfor the displacement member tip 1204 and/or the sacrificial member 1216to rotate when contacting the Schrader-type valve member. For example,this arrangement can mitigate binding of the sacrificial member 1216,thereby mitigating undesired twisting or deformation of the sacrificialmember 1216 during coupling.

In one implementation, the sacrificial member 1216 can be configured todeform at a pre-determined (e.g., elevated) temperature. In thisexample, the deformation at the pre-determined temperature of thesacrificial member 1216 may the Schrader-type valve biasing force toovercome the biasing force of the displacement member. In this example,the resulting deformation may allow the Schrader-type valve to close,thereby interrupting the fluid flow from the fluid source.

In another aspect, another alternate implementation of a device orsystem may be devised that can also be used to interrupt flow of fluidfrom a fluid source to a target device. In this aspect, the sacrificialcomponent can be disposed at another alternate location in the fluidintake valve, where the sacrificial component can deform when exposed topredetermined, elevated temperatures to interrupt the fluid flow.

FIGS. 18 and 19 are component diagrams illustrating another alternateimplementation 1800 of a device for interrupting flow of fluid from afluid source to a target device. In this implementation 1800, the body1802 comprises an internal passage 1816, a retention cap 1810, a biasingcomponent 1808, gasket 1812, displacement member 1806, and displacementmember tip 1804. In this implementation, a sacrificial component 1814 isdisposed between, and in contact with, the biasing component 1808 andthe retention cap 1810.

As described above, and illustrated in FIG. 19, the example device 1800can be coupled with a target device intake connection 1900, such as aregulator (e.g., or other connection). Further, the target device intakeconnection 1900 can be coupled (e.g., threadedly coupled) with a fluidsource, such as a tank or coupler comprising a Schrader-type valve. Inthis example, the displacement member tip 1804 can contact theSchrader-type valve, and the biasing force of the biasing component 1808can be configured to displace the Schrader-type valve to allow fluidflow from the source, to the target device intake connection 1900.

As an example, when subjected to a pre-determined elevated temperature,the sacrificial component 1814 can be configured to deform (e.g., melt).The deformation of the sacrificial component 1814 may displace thebiasing component 1808, which, in turn, can result in displacement ofthe displacement member 1806 toward the proximal end. In this example,the displacement proximally of the displacement member 1806 may resultin the displacement member tip 1804 disengaging (e.g., or at least nolonger providing enough force to overcome the biasing force of) theSchrader-type valve). In this example, the Schrader-type valve may beallowed to close, thereby mitigating fluid flow from the source.

In one aspect, another alternate implementation of a device or systemmay be devised that can be used to interrupt flow of fluid from a fluidsource to a target device. In this aspect, the sacrificial component cancomprise an alternate configuration, and location in the fluid intakevalve, where the sacrificial component can deform when exposed topredetermined, elevated temperatures to interrupt the fluid flow.

In one implementation, in this aspect, as illustrated in FIGS. 20-24,the example temperature sensitive component 2008 can be disposed at theproximal end of the subject intake valve 2000. In this implementation,the example intake valve 2000 can comprise a valve body 2001, which cancomprise an intake passage 2102. The intake passage 2102 can beconfigured to receive a flow of fluid (e.g., gas or liquid, such asfuel, or other combustible product) from a fluid source 2402. The valvebody 2001 can also comprise a valve chamber 2103 configured to receivefluid from the intake passage 2102, and to direct the flow of fluidbetween intake passage 2102 and a pressurized fluid intake component2401 (e.g., regulator).

As illustrated in FIG. 22, with continued reference to FIGS. 20, 21, 23,and 24, a displacement member 2104 (e.g., valve needle) can be disposedin the intake passage 2102 and valve chamber 2103, and be configured toslidably translate inside the valve body 2001. The displacement member2104 can comprise a sealing step 2206, which is configured to seat in acorresponding step recess 2205 in the interior of the valve body 200,between the intake passage 2102 and the valve chamber 2103. Further, thedisplacement member 2104 can comprise an annular groove 2241, adjacentto the sealing step 2206, which, in conjunction with a gasket 2242(e.g., O-ring), can provide a seal between the intake passage 2102 andthe valve chamber 2103.

As illustrated in FIG. 23, a biasing component 2307 (e.g., spring) canbe disposed in contact with the displacement member 2104 at a shoulderin the valve chamber 2103, at the distal end of the biasing member 2307.The proximal end of the biasing member 2307 can be disposed in contactwith the temperature sensitive component 2008. In this implementation,the temperature sensitive component 2008 (e.g., sacrificial component)can be disposed in the valve body 2001, at its proximal end, to form afluid flow gap 2182 between the temperature sensitive component 2008 andthe interior wall of the valve body 2001. The fluid flow gap 2182 canfluidly communicate with the valve chamber 2103 to the proximal end ofthe example valve 2000.

Further, as illustrated in FIGS. 21A and 21B, the temperature sensitivecomponent 2008 can comprise a central opening the is configured toreceive the proximal end of displacement member 2104, such that thetemperature sensitive component 2008 seats on the displacement member2104, and is in contact with the biasing member 2307. The temperaturesensitive component 2008 can comprise a plurality of projections 2184arranged around the perimeter of the temperature sensitive component2008. In this implementation, the diameter of the temperature sensitivecomponent 2008 is less than inner diameter of the valve body 2001. Thetemperature sensitive component 2008 can also comprise one or more valvecavities 2183 that allow passage of fluid therethrough, when disposed influid communication with the fluid source 2402.

As illustrated in FIGS. 20 and 21, the outer wall of the valve body20011 can comprise a coupling component 2011, comprising screw thread11, for example, which can allow for convenient installation, such as ina regulator 2401. As shown in FIG. 24, in one implementation, the valvebody 2001 can be installed in a pressurized fluid intake valve 2401(e.g., regulator). Further, the displacement member 2104 can be operablyconnected to an outlet valve disposed in the fluid source 2402. As anexample, the fluid source 2402 can comprise a poppet valve that isdisplaced in an open position when contacted by the displacement member2104. Additionally, the displacement member can be slidable displacedtoward the proximal end of the example, valve 2000, against the biasingforce of the biasing member 2307. In this way, for example, pressurizedfluid from the fluid source 2402 can flow through the intake passage,2102, into the valve chamber 2103, and out to the regulator 2401 throughthe fluid gap 2182.

However, as an example, if the connection between the regulator 2401 andthe fluid source 2402 is not completely sealed (e.g., due tocross-threading), flammable fluid may escape around the connection. Inthis case, for example, the leaking fluid may ignite, causing combustionaround the connection. The temperature sensitive component 2008 isconfigured to deform under elevated temperatures (e.g., greater than 100degrees Celsius). For example, if the temperature sensitive component2008 deforms, the biasing component may no longer be able to provide thebiasing force needed to allow the displacement member to keep the poppetvalve open in the fluid source 2402. In this way, for example, fluidfrom the fluid source 2402 may be shut off, thereby mitigating thecombustion outside of the connection.

In one implementation, in order achieve a desired temperaturedeformation effect for the sacrificial component (e.g., 2008), thecomponent can be comprised of a substance has the property ofdeformation and melting begins when the temperature reaches the desireddeformation point (e.g., higher than 100 C). As an example, the lowmelting point material can be polyethylene (e.g., HDPE, LDPE, LLDPE),polypropylene (such as PP, MPP, MCPP), polyamide (e.g., nylon 6, nylon66, nylon 11, nylon 12, nylon 1010, nylon 610, nylon 612, nylon 46.nylon 1212, aromatic nylon, copolymerized nylon, modified nylon andother nylon), polycarbonate (PC), polyoxymethylene (POM), polyphenyleneether (PPO/MPPO). thermoplastic polyester (such asPBT/PET/PCT/PTT/PEN/PBN), polytetrafluoroethylene (PTFE), polyvinylidenefluoride (PVDF), polyimide (PI), polyphenylene sulfide (PPS),polysulfone plastic (e.g., PSF, PES, PAS) polyketone plastics (such asPEEK, PEK, PAEK, PEKK, PESK, PEEKK, PEKEKK), polyarylate (PAR),polyvinyl chloride (PVC), polystyrene (PS),acrylonitrile-butadiene-styrene copolymer (ABS), or combinations of twoor more of these substances.

The word “exemplary” is used herein to mean serving as an example,instance or illustration. Any aspect or design described herein as“exemplary” is not necessarily to be construed as advantageous overother aspects or designs. Rather, use of the word exemplary is intendedto present concepts in a concrete fashion. As used in this application,the term “or” is intended to mean an inclusive “or” rather than anexclusive “or.” That is, unless specified otherwise, or clear fromcontext, “X employs A or B” is intended to mean any of the naturalinclusive permutations. That is, if X employs A; X employs B; or Xemploys both A and B, then “X employs A or B” is satisfied under any ofthe foregoing instances. Further, at least one of A and B and/or thelike generally means A or B or both A and B. In addition, the articles“a” and “an” as used in this application and the appended claims maygenerally be construed to mean “one or more” unless specified otherwiseor clear from context to be directed to a singular form.

Although the subject matter has been described in language specific tostructural features and/or methodological acts, it is to be understoodthat the subject matter defined in the appended claims is notnecessarily limited to the specific features or acts described above.Rather, the specific features and acts described above are disclosed asexample forms of implementing the claims. Reference throughout thisspecification to “one implementation” or “an implementation” means thata particular feature, structure, or characteristic described inconnection with the implementation is included in at least oneimplementation. Thus, the appearances of the phrases “in oneimplementation” or “in an implementation” in various places throughoutthis specification are not necessarily all referring to the sameimplementation. Furthermore, the particular features, structures, orcharacteristics may be combined in any suitable manner in one or moreimplementations. Of course, those skilled in the art will recognize manymodifications may be made to this configuration without departing fromthe scope or spirit of the claimed subject matter.

Furthermore, the claimed subject matter may be implemented as a method,apparatus or article of manufacture using standard programming and/orengineering techniques to produce software, firmware, hardware or anycombination thereof to control a computer to implement the disclosedsubject matter. The term “article of manufacture” as used herein isintended to encompass a computer program accessible from anycomputer-readable device, carrier or media. Of course, those skilled inthe art will recognize many modifications may be made to thisconfiguration without departing from the scope or spirit of the claimedsubject matter.

Also, although the disclosure has been shown and described with respectto one or more implementations, equivalent alterations and modificationswill occur to others skilled in the art based upon a reading andunderstanding of this specification and the annexed drawings. Thedisclosure includes all such modifications and alterations and islimited only by the scope of the following claims. In particular regardto the various functions performed by the above described components(e.g., elements, resources, etc.), the terms used to describe suchcomponents are intended to correspond, unless otherwise indicated, toany component which performs the specified function of the describedcomponent (e.g., that is functionally equivalent), even though notstructurally equivalent to the disclosed structure which performs thefunction in the herein illustrated exemplary implementations of thedisclosure.

In addition, while a particular feature of the disclosure may have beendisclosed with respect to only one of several implementations, suchfeature may be combined with one or more other features of the otherimplementations as may be desired and advantageous for any given orparticular application. Furthermore, to the extent that the terms“includes,” “having,” “has,” “with,” or variants thereof are used ineither the detailed description or the claims, such terms are intendedto be inclusive in a manner similar to the term “comprising.”

What is claimed is:
 1. A device for mitigating fluid flow at apredetermined temperature, comprising: a valve body configured to engagewith fluid supply at a distal end, and to engage with a fluid intake ata proximal end, the valve body comprising an internal passage fluidlycoupling the distal end with the proximal end; a displacement memberdisposed in the internal passage, the displacement member comprising anelongate body with a proximal portion, and a distal portion to engagewith a fuel supply valve in a preset position that allows fluid to flowfrom the fuel supply into the internal passage of the valve body; and aretention cap selectably engaged with the valve body at the proximalend, the retention cap comprised of a material that deforms under forceat a predetermined temperature, resulting in the displacement memberoperably releasing the displacement member from the preset positon atthe predetermined temperature.
 2. The device of claim 1, thedisplacement member comprising a proximal stop at the proximal end. 3.The device of claim 2, further comprising a biasing component comprisinga spring that is engaged with the retention cap and proximal stop tooperably apply a biasing force to the proximal stop of the displacementmember sufficient to dispose the displacement component in the presetposition.
 4. The device of claim 3, the deformation of the retention capresulting in reduction of the biasing force sufficiently to release thedisplacement member from the preset position.
 5. The device of claim 1,the retention cap comprising a recessed shoulder configured to hold thedevice in non-fixed engagement with the biasing component.
 6. The deviceof claim 1, the predetermined temperature representing a level of heatproduced by combustion of fluid leaking proximate the valve body.
 7. Thedevice of claim 1, the distal portion of the displacement memberextending out of the valve body at the distal end to engage the fuelsupply valve.
 8. The device of claim 1, the retention cap so dimensionedto receive the proximal end of the displacement member.
 9. The device ofclaim 1, comprising a gasket disposed on the displacement member toprovide a seal in the internal passage running between the proximal endand distal end of the valve body.
 10. A temperature-sensitive valve,comprising: a valve body comprising an internal passage having aproximal end and a distal end; an elongate valve displacement memberdisposed in the internal passage; a biasing spring providing a biasingforce to bias the valve displacement member toward the distal end, thespring engaged with a spring seat at the proximal end, the spring seatcomprising a material that deforms at a predetermined temperature torelease the biasing force from the displacement member; wherein thedisplacement member extends from the end of the valve body at the distalend to operably engage with a fluid outlet valve to release fluid fromthe fluid outlet valve.
 11. The valve of claim 10, the valve bodycomprising external threading at the proximal end to engage with a fluidintake regulator.
 12. The valve of claim 10, the biasing force providedby the biasing component overcoming a closing force of a fluid outletvalve disposed in the fuel supply.
 13. The valve of claim 10, the valvebody comprising a shoulder in the internal passage toward the proximalend, and the displacement member comprising a shoulder toward the distalend that engages the valve body shoulder when subjected to the biasingforce.
 14. The valve of claim 13, comprising a gasket disposed on thedisplacement member between the displacement member shoulder and thevalve body shoulder.
 15. The valve of claim 10, the spring seatcomprising one of: a polymer, a eutectic alloy, and a linear low densitypolyethylene.
 16. A fuel intake valve for use in a pressurized fuelconnection, comprising: a valve body comprising an internal passage, aproximal end, and a distal end; a displacement member disposed in theinternal passage; an sacrificial member comprising an annular bodydisposed at least partially in the internal passage at the distal end ofthe valve body, the sacrificial member further comprising a plurality ofprojections disposed around the perimeter of the sacrificial member toallow fluid flow from the internal passage, and wherein the sacrificialmember comprised of a material that deforms under pressure at apredetermined temperature; a biasing component engaged with thesacrificial member and the displacement member to operably provide abiasing force to the displacement member toward the distal end of thevalve body.
 17. The valve of claim 16, comprising a fluid flow gapbetween the sacrificial component and an interior wall of the valvebody.
 18. The valve of claim 16, comprising a retention cap, and thesacrificial member comprising a collar disposed between the retentioncap and the biasing component in the internal passage.